cyclingo

Senior Qa Specialist

Senior QA Automation Engineer | Blockchain & Web3 Specialist

8+ years of QA automation experience with recent specialisation in blockchain infrastructure testing. Currently contributing to Hedera Hashgraph's core services team, where I work on automated testing framework for distributed consensus mechanisms, smart contract functionality, and token operations.

Technical Expertise: TypeScript, Python | Selenium, Playwright, Pytest | CI/CD automation with Docker & Jenkins | Performance testing and load benchmarking | API and microservices testing.

Blockchain Focus: Experience testing distributed ledger technologies, consensus algorithms, and Web3 protocols. Skilled in analysing blockchain protocol improvements (HIPs) and developing comprehensive testing strategies for feature compatibility and system stability.

What I Built: Enterprise-grade automation frameworks from scratch using SOLID principles, comprehensive backend integration testing for microservices, and robust CI/CD testing pipelines for high-performance distributed systems.

Leadership: Mentored junior QAs, participated in technical recruitment, and established testing standards across international remote teams. ISTQB certified with strong collaboration skills in Agile environments.

Seeking: QA role in Web3/blockchain companies where I can leverage my distributed systems testing expertise and contribute to the next generation of decentralized applications and infrastructure.

Personal: National MTB Champion (Bulgaria XCM) - bringing the same competitive drive and attention to detail to blockchain QA that helped me reach the podium 🏆.

Experience: 8 years

Yearly salary: $80,000

Hourly rate: $45

Nationality: 🇺🇦 Ukraine

Residency: 🇧🇬 Bulgaria

Experience

Software Development Engineer in Test (SDET)

Hellotickets

2023 - 2025

Architected scalable automation framework from scratch using TypeScript, Playwright, and Docker, implementing SOLID principles and design patterns (Page Object Model, Factory, Singleton). Engineered comprehensive backend testing solutions through Go and proto file analysis, creating custom automation scripts for microservices integration testing. Optimised CI/CD workflows by configuring Docker containers and TeamCity/Jenkins pipelines, reducing deployment overhead and improving test execution efficiency. Led performance testing initiatives using virtual users for load testing and benchmarking in production environments. Mentored junior QA engineers and actively participated in recruitment processes, conducting technical interviews and onboarding new team members to establish testing best practices and team standards.

QA Automation Engineer

Cyrebro

2022 - 2023

Automated critical manual testing scenarios and established integrations with AIO tools, while building foundational integration tests for API, Database, and AWS services to streamline cybersecurity testing environments. Developed comprehensive database testing processes with automated SQL scripts for mock data insertion, cleanup, and validation, ensuring data integrity across performance, functional, and end-to-end testing scenarios. Enhanced testing framework architecture through code reviews and refactoring initiatives, improving code quality and maintainability while implementing Proof of Concepts (PoCs) to evaluate potential technology integrations and tooling improvements.

Backend Test Automation Engineer

Godaddy

2019 - 2021

Designed and implemented comprehensive test automation framework from scratch using Selenium WebDriver and Python Requests for API and UI testing. Developed advanced database testing processes with automated SQL scripts for mock data operations and validation. Optimized database performance through query optimization and performance testing in collaboration with development teams. Created scalable automation processes with Docker and Jenkins for efficient CI/CD pipeline execution. Implemented Allure reporting and Slack integration for enhanced cross-team communication and metrics delivery.

QA Automation Engineer

ESMEDIA

2018 - 2019

Built scalable test automation framework for high-load CPA platforms using Python, Selenium WebDriver, and Django. Led API testing initiatives utilizing Postman for manual validation and Python requests for automated regression testing. Created comprehensive test documentation and collaborated with Product Management on requirements updates. Conducted thorough exploratory and ad-hoc testing ensuring complete coverage for internal and external applications. Implemented GitLab CI/CD integration for continuous test automation and enhanced deployment reliability.

Skills

analyst

architecture

docker

ethereum

ethereumjs

hardhat

integration

node

python

quality-assurance

typescript

english

russian

ukrainian

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